The solubility of ${\mathrm{BaSO}}_4$ in water is $2.42\times {10}^{-3} {\mathrm{gL}}^{-1}$ at $298\mathrm{ }\mathrm{K}.$ The value of its solubility product $\left({\mathrm{K}}_{\mathrm{sp}}\right)$ will be

(Given- the molar mass of ${\mathrm{BaSO}}_4=233\mathrm{ }\mathrm{g}\mathrm{ }{\mathrm{mol}}^{-1}$)

• A

  $1.08\times {10}^{-14 }{\mathrm{mol}}^2 {\mathrm{L}}^{-2}$
• B

  $1.08\times {10}^{-12}\mathrm{ }{\mathrm{mol}}^2 {\mathrm{L}}^{-2}$
• Correct answer
  C

  $1.08\times {10}^{-10} {\mathrm{mol}}^2 {\mathrm{L}}^{-2}$
• D

  $1.08\times {10}^{-8}\mathrm{ }{\mathrm{mol}}^2 {\mathrm{L}}^{-2}$

Hence, the correct answer is option: 'C'.